Issue #19611 has been updated by nobu (Nobuyoshi Nakada). Mine: https://github.com/ruby/ruby/pull/7753 https://github.com/ruby/ruby/pull/7754 kjtsanaktsidis (KJ Tsanaktsidis) wrote in #note-2:
This code isn't optimal though. A second pass of the peephole optimizer would reduce this down to this I think -
``` 0000 jump 0 0002 putnil 0003 leave ```
It is due to the labels to `next`/`redo`. Ideally, it could be only one instruction `jump 0` if such labels (also for `break`) are eliminated when unused. ---------------------------------------- Bug #19611: Ruby hangs up with `while true && true` https://bugs.ruby-lang.org/issues/19611#change-102917 * Author: tompng (tomoya ishida) * Status: Open * Priority: Normal * ruby -v: ruby 3.2.0 (2022-12-25 revision a528908271) +YJIT [x86_64-darwin20] * Backport: 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN ---------------------------------------- Fails to run this code. It hangs up. Ctrl+C does not work. ~~~ruby def hoge while true && true end end ~~~ Compiling `while true && true; end` will also hangs up ~~~ruby irb(main):001:0> RubyVM::InstructionSequence.compile 'while true && true; end'; puts :done (no response) ~~~ -- https://bugs.ruby-lang.org/